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General Purpose Thermocouples

High Temperature Magnet Thermocouple (Type 31HT)

This versatile magnetic thermocouple is suitable for high temperature measurements on ferrous surfaces up to a maximum of 572°F. The sensor is supplied with stainless steel braided fiberglass insulated Wire. Available in thermocouple types K, T, J, N or E as standard and has an operating temperature range of -14ºF to +572°F. Magnet Dimensions: 1.14" dia. X 0.33" thick.

Enquiry Form

1. Thermocouple Type

2. Wire Length


3. Optional Thermocouple Plug

4. Quantity Required

Contact Details

Company Name

Your Name



Additional Information

If your enquiry is for more than one style of sensor, please email us with your requirements or use the box below

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1 Thermocouple Type Temperature Range (continuous) Temperature Range
(short term)
K Nickel Chromium vs
Nickel Aluminium
32°F to +2010°F -290°F to +2460°F
T Copper vs Constantan -300°F to +570°F -420°F to +750°F
J Iron vs Constantan +68°F to +1290°F -290°F to +1380°F
N Nicrosil vs Nisil 32°F to +2010°F -450°F to +2370°F
E Nickel Chromium vs Constantan 32°F to +1470°F -40°F to +1650°F
Temperature ranges refer to the thermocouple type.
The temperature range of the sensor may deviate from the above,
please refer to the product description for more details